Improvement in ash-pans for steam-boilers



J GATES. Improvement in Ash Pans for Steam Boilers. No. 120,870. IPatented Nov-14,1871

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JOHN GATES, OF PORTLAND, OREGON.

IMPROVEMENT IN ASH-FANS FOR STEAM-BOILERS.

Specification forming part of Letters Patent No. 120,870, dated November14, 1871.

To all whom it may concern:

Be it known that I, JOHN Gnrns, of Portland, in the county of Multnomahand State of Oregon, have invented a new and Improved Ash-, Pan forSteam-Boilers; and I do hereby declare that the following; is a full,clear, and exact description thereof, which will. enable others skilledin the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification, in which-Figure 1 represents a side view, partly in section, of a boiler providedWith my improved ashpan. Fig. 2 is a front elevation of the same.

Similarletters of reference indicate correspond ing parts.

My invention consists in certain improvements in connection with theash-pans of steam-boilers, as hereinafter fully described andsubsequently pointed out in the claim.

A in the drawing represents the ash-pan of the boiler B. O is asurrounding-pan, within which the ash-pan is placed, so that awaterspace, a, will be formed between the two. Stays b b, of properstrength, are interposed between A and (J for holding them the requisitedistance apart and supporting the ash-pan. d is the wa' tor-supply pipeleading to the water-space a. e

.. is a pipe extending from the side of the outer pan 0, and bentupward, as shown in Fig.1. Its

, upper end is bent down to discharge water into a funnel, f, held on adischarge-pipe, g. The water entering the space a through the pipe d,circulates around the ash-pan and escapes then through the pipe 0. Theengineer can at the end of the latter always observe whether thecirculation of water is interrupted or not. Air is admitted to theash-pan in front through an opening, h. A hinged door or damper, D, isapplied to the front of the boiler for the purpose of more or lessclosing the opening h, and thereby regulating the draught. A rope orchain, E, is connected with the damper, and extends thence to theengineers room, passing over friction-rollers i 2'. Its other end is ormay be weighted to balance the door in any desired position; or isotherwise secured or connected in such manner that the engineer canreadily control the position of the damper D and increase, reduce, orextinguish the fire. The interior of the ash-pan. is always dry, so thatthe coal and ashes are drawn up through the fines.

I may further remark that I may use the damper in rear of the ash-pan orin front of the same, and sometimes one at each end.

Having thus described my invention, I claim as new and desire to secureby Letters Patent--.

1. In combination with boiler B and ash-pan A, having damper D operatedfrom the engineers room, the surrounding-pan 0 having water-space a,stays b b, and pipes 01 0, arranged as and for the purpose specified.

2. The escape-pipe 6 extending from the wa ter-space a, and discharginga visible stream into the funnel f, substantially as and for the purposeherein shown and described.

Witnesses: JOHN GATES.

SAM. A. MORELAND, ISAAC BERG-MAN. (14.9)

